which ganglion supported cockroach act as grain
Answers
It is formed by the fusion of three pairs of ganglia. It represents the brain and is concerned chiefly with sensory function.
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Answer:
The Insect Brain
diagram of insect brainlabelled diagram of insect braininsect brain showing position of foregutdiagram of section through insect brainThe basic insect nervous system bauplan consists of a series of body segments, each equipped with a pair of connected
ganglia, with a paired nerve cord connecting adjacent ganglia in each segment. The ganglia are bulbous structures
consisting of neuron cell-bodies and supporting or glial cells and acts as a local processor or computer. the ganglia are
interconnected by neurons, constituing a computer network. This plan is variously modified in the various types, but in all
cases the ganglia of the head segment form a fused mass, situated above the oesophagus (esophagus) of the gut, and
called the supraoesophageal ganglion. This is connected by a pair of nerve trunks (connectives or commissures) that
course around the oesophagus on either side and join to the suboesophageal ganglion (SOG or SEG) situated beneath
the oesophagus. Many consider only the supraoesophageal ganglion to constitute the insect brain, others (including myself)
consider the SOG as part of the brain.